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EGR ratio from exhaust gas composition

  1. Jul 31, 2017 #1
    1. The problem statement, all variables and given/known data
    given:-fuel and air mass flow, measured mole ratios of exhaust composition y_i. Lets assume stoichiometric combustion so we have only CO2, H20 and N2 as products.

    2. Relevant equations
    Can EGR ratio be calculated from available data?

    3. The attempt at a solution
    skica zadatka (2).jpg
    I get result that molar ratios don't depend on EGR ratio.
  2. jcsd
  3. Jul 31, 2017 #2
    Your first equation already tells you this.
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